linux-kernel - RE: Upgraded from 3.4 to 3.5.1 kernel: machine does not boot

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Message-ID: <0de101cd774c$fb2afa10$f180ee30$@lucidpixels.com>
Date:	Fri, 10 Aug 2012 19:07:56 -0400
From:	"Justin Piszcz" <jpiszcz@...idpixels.com>
To:	"'Jesper Juhl'" <jj@...osbits.net>
Cc:	<linux-kernel@...r.kernel.org>, <ap@...arrain.com>
Subject: RE: Upgraded from 3.4 to 3.5.1 kernel: machine does not boot



-----Original Message-----
From: Justin Piszcz [mailto:jpiszcz@...idpixels.com] 
Sent: Friday, August 10, 2012 5:46 PM
To: Jesper Juhl
Cc: linux-kernel@...r.kernel.org; ap@...arrain.com
Subject: Re: Upgraded from 3.4 to 3.5.1 kernel: machine does not boot

On Fri, Aug 10, 2012 at 1:53 PM, Jesper Juhl <jj@...osbits.net> wrote:
> On Fri, 10 Aug 2012, Justin Piszcz wrote:
>
>> Hello,
>>
>> Motherboard: Supermicro X8DTH-6F
>> Distro: Debian Testing x86_64
>>
>> >From 3.4 -> 3.5.1 on x86_64 make oldconfig and a few minor changes and
the
>> machine attempts to boot but hangs at the filesystem mounting part of the
>> boot process.

Hi,

Found the root cause, the 3.5.1 kernel cannot mount my ext4 filesystem
(60TB).

The 3.4 kernel works fine.

This is proven by commenting out the filesystem in /etc/fstab with
3.5.1, and all is OK.

--

Hi again,

I tested with linux-3.6-rc1:

The same problem, here is what I get from the strace:

irectory)
4434  readlink("/dev", 0x7fff3b05c670, 4096) = -1 EINVAL (Invalid argument)
4434  readlink("/dev/sda1", 0x7fff3b05c670, 4096) = -1 EINVAL (Invalid
argument)
4434  readlink("/r1", 0x7fff3b05c670, 4096) = -1 EINVAL (Invalid argument)
4434  getuid()                          = 0
4434  geteuid()                         = 0
4434  getgid()                          = 0
4434  getegid()                         = 0
4434  prctl(PR_GET_DUMPABLE)            = 1
4434  lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=12, ...}) = 0
4434  getuid()                          = 0
4434  geteuid()                         = 0
4434  getgid()                          = 0
4434  getegid()                         = 0
4434  prctl(PR_GET_DUMPABLE)            = 1
4434  stat("/run", {st_mode=S_IFDIR|0755, st_size=820, ...}) = 0
4434  lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
4434  open("/run/mount/utab", O_RDWR|O_CREAT, 0644) = 3
4434  close(3)                          = 0
4434  mount("/dev/sda1", "/r1", "ext4", MS_MGC_VAL|MS_NOATIME, NULL

--

(w/ 3.6-rc1) 

[   89.868843] mount           R  running task        0  4434   4433
0x00000009
[   89.868847]  ffff880c246b7b68 ffffffff816c9279 ffff880c246b7aa8
ffff880c246b7fd8
[   89.868851]  ffff880c246b7fd8 0000000000004000 ffff88062720cdb0
ffff880c246862d0
[   89.868855]  00000000000116c0 ffff880623a863c0 ffff880623a863c0
00000000ffffffff
[   89.868855] Call Trace:
[   89.868858]  [<ffffffff816c9279>] ? __schedule+0x299/0x770
[   89.868860]  [<ffffffff816c9279>] ? __schedule+0x299/0x770
[   89.868864]  [<ffffffff8114a729>] ? ext4_get_group_desc+0x49/0xb0
[   89.868868]  [<ffffffff81161d41>] ? ext4_calculate_overhead+0x131/0x3e0
[   89.868871]  [<ffffffff81163a3b>] ? ext4_fill_super+0x1a4b/0x28d0
[   89.868875]  [<ffffffff810cc301>] ? mount_bdev+0x1a1/0x1e0
[   89.868877]  [<ffffffff81161ff0>] ? ext4_calculate_overhead+0x3e0/0x3e0
[   89.868880]  [<ffffffff8115dd00>] ? ext4_mount+0x10/0x20
[   89.868882]  [<ffffffff810cc55b>] ? mount_fs+0x1b/0xd0
[   89.868885]  [<ffffffff810e57af>] ? vfs_kern_mount+0x6f/0x110
[   89.868888]  [<ffffffff810e58cf>] ? do_kern_mount+0x4f/0x100
[   89.868890]  [<ffffffff810e6dae>] ? do_mount+0x2fe/0x8a0
[   89.868894]  [<ffffffff8109c0a3>] ? strndup_user+0x53/0x70
[   89.868896]  [<ffffffff810e73e0>] ? sys_mount+0x90/0xe0
[   89.868899]  [<ffffffff816cafa1>] ? tracesys+0xd4/0xd9

Justin.



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